James melville jarvis



JLM. JARVIS. PORTABLE FIREPROOFGHIMNEY;

10.512,707. Patented Jan. 16,1894.

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TATLES JAMES MELVILLE JARVIS, OF MESICK, MICHIGAN, ASSIGNOR OF ONEHALFTO JEDEDIAH DAfRROW, OF SAME PLACE.'

PORTABLE FIREPROOF CHIMN EY.

SPECIFICATION forming part of Letters Patent No. 512,707, dated January16, 1894. .Application filed December 7,1892. serial No. 454,371.(Nomade.)

To all whom it may concern.:

Be it known that I, JAMES MELVILLE JAR- vIs, a citizen of the UnitedStates, residing at Mesick, in the county of Wexford and State ofMichigan, have invented a new and useful Portable Fireproof Chimney,l ofwhich the following is a specification.

My invention relates to a portable chimney, adapted to be attached anddetached at will, and the objects in view are to provide means toprevent the accumulation of soot upon the side walls of the smoke-flue;furthermore, to provide means for giving an alarm when the smokeiiuebecomes injured or burned out; furthermore, to provide improved meansfor maintaining the smoke-flue in place withinthe outer casing or shell;furthermore, to provide improved means for attaching the chimney to theroof of the building; furthermore, to provide improved means forcollecting `and containing the soot, from which the same may be removedat intervals, and furthermore, to provide means whereby access may behad to the interior of the casing or shell, between the walls of thesame and Jthe-exterior of the' smoke-flue, for purposes of repair, dro.

The primary object of my invention is t0 provide a chimney from whichIire may not be communicated' to the wood-work of the building, andwhich at the saine time may be light and portable. Y

Further objects and advantages of my invention will appear in Ithefollowing description, and the novel features thereof will beparticularly pointed out in the appended claims. Y

In the drawings, Figure l is a perspective View of a chimney embodyingmy improvements. Fig. 2 is a vertical central section of the same,showing it inplace in a building. Fig. 3 is a vertical section throughthe lower part of the chimney, at right angles to Fig. 2. Fig. 4 is ahorizontal section, on line m-ac of Fig. 2. Fig. 5 is a similar view, online y-y of Fig.. 2.

A designates the outer casing or shell, which is preferably square insection, and it is provided at its lower end, which extends within thebuilding, with a soot-chamber, B, containing a soot-pan, C, and having adoor, D. The

smoke-flue, E, which is arranged axially in the casing or shell, istapered toward its ends from apoint, e, above the roof of the building,this point c indicating the portion of largest diameter. This peculiarshape of fiue prevents the accumulation of soot upon the Walls thereof.The lower end of the smokeiiue iits over an upright flange, f, which isformed around an opening, f', in a horizontal plate, F, which closes thelower end of the casing or shell and separates the space between theflue and the walls of the casing or shell from the sootchamber. Thisplate is provided with depending flanges which are fastened to the innersurfaces of the walls of the casing or shell. A cast metal brace, G, isxed in the casing or shell, beneath this plate .to secure the parts intheir proper relative .and to the outer end of which is connected thesmoke-pipe from the stove or furnace. The side of the casing or shell.is further provided with an opening I, into which is fitted a spout, I',provided with a cover or stopper, e.

K represents the roof-bracket, which is riveted to the outside of thecasing or shell and is provided at its lower edges with flanges, k, tosecure to the roof.

L represents a brace, secured at its ends to the inner surfaces of thewalls of the casing or shell, and provided with a yoke, L', to embraceand engage the iiue to hold it in place in the casing.

Upon the upper end of the casing or shell is fitted the cap, M, providedwith a cornice, N, and having at the center of its upper side anopening, m, which is surrounded by a depending flange, m', which fitswithin the upper end of the smoke-flue. This cap is removable to providemeans for gaining access to the interior of the casing or shell.

After the casing is erected in its operative position upon the roof, thespace between the flue and the casing is filled with fine sharp sand,thus forming a fire-proof jacket around IOO the smoke-flue, whichprevents surrounding wood-work from being over-heated. Should thesmoke-flue burn out the sand flows through the opening thus formed, andpass ing down through the smoke pipe chokes the fire and prevents damageto the property.

When the chimney is to be detached or taken down the sand isfirstremoved through the spout which is provided at the lower end of thecasing or shell.

To hold the pipe, 7L, and the spout, I', firmly in place while inoperation, and enable them to be readily detached when the chimney is tobe removed, I employ a clamp, O, comprising the jaws, P P, pivoted tothe outer surface of the casing or shell, fitting at their upper ends ina grooved guide, P', and connected by a thumb-screw, P. These jaws arecurved to fit the spout and pipe and hold them firmly in place when adjusted by means of the thumb-screw.

Changes in the form, proportion and the minor details of constructionmay be resorted to without departing from the principle or sacrificingany of the advantages of this invention. j

Having thus described my invention, what I claim, and desire to secureby Letters Patent of the United States, is i l. In a chimney, thecombination with a smoke iue, of the surrounding casing or shellterminating at its upper end in the plane of p the upper end of thesmoke fine, and a removable cap iitted upon the upper end of the cas- 1ing or shell, and provided with a depending l interior flange to fitwithin the upper end of the said smoke flue, and a depending exteriorfiange to inclose the upper edges of the casing or shell, substantiallyas specified.

2. In a chimney, the combination with a smoke iiue, of `a surroundingcasing or shell, i

a yoke to engage the lower end of the smoke fine, substantially asspecified.

3. In a chimney, the combination of a casing or shell, a smoke fluedisposed axially in the casing or shell and out of contact with thewalls thereof, means to support said smoke flue within thecasing, and asoot chamber 1ocated in the bottom of the casing beneath the lower endof the smoke flue the soot chamber being in communication with the fineand cut off from the surrounding annular space, substantially asspecied.

4. In a chimney, the combination with the smoke-flue, of a surroundingcasing 'or shell, adapted to be filled with a non-conducting material, apipe fitting in registering openings in the smoke-flue and casing,aspout fitting in an opening in the casing adjacent to said pipe, and aclamp connected to the outer wall of the casing and engaging said pipeand spout to hold them in their operative positions, substantially asspecified. j

5. In a chimney, the combination with the smoke-fine, of a surroundingcasing or shell adapted to be filled with a non-conducting material,ahorizontal plate set in the casing at the lower end of the smoke-lineand provided with an opening and an upstanding flange to fit in thelower end of the flue, and a soot-chamber arranged beneath saidhorizontal plate and provided with a door through which the soot may beremoved, substantially as specified.

6. In a chimney, the combination with the smoke-fine of the surroundingcasing or `shell adapted to be filled with a non-conducting material,and a brace secured at its ends to the inner walls of the casing andprovided with a yoke to engage fthe sides of the flue, substantially asspecified.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

JAMES MUELVILLE JARVIS.

Witnesses:

R. D. FREDERICK, LEROY P. CHAMPENOIS.

